GONZÁLEZ VILA , Francisco Javier

El solvente ideal de las S.H. sería igual que extrajera un gran porcentaje de material húmico inalterado. La bibliografía existente sobre estudios comparativos entre los distintos extractores disponibles es muy extensa: Bremner y Lees 1949, Wright y col. 1958, Martín y Reeve 1957, Choudrhi y Stevenson 1957, Schnitzer y col. 1959, Wiesemüller...

The aliphatic hydrocarbon composition of sediments from Ceuta harbour, North Africa, was studied to determine the sources, levels and effects of these hydrocarbons on macrofauna com- position by considering indices and concentration ratios in multivariate analyses. A total of 21 stations (15 inside and 6 outside the harbour) were sampled using...